Annals of the Royal College of Surgeons of England (1990) vol. 72, 27-31

The efficiency of management of emergency surgery in a district general hospital a prospective study David J Flook MCh FRCS* Senior Surgical Registrar Michael K H Crumplin

MB BS FRCS

Consultant Surgeon

Wrexham Maelor Hospital, Wrexham

Key words: Emergency service, hospital; Efficiency

In a 6-month prospective study of management of surgical emergencies in a district general hospital, we have tried firstly to determine the degree to which non-life-threatening emergencies could be managed within 'social hours' (0800-1800), and secondly to identify examples of and reasons for potentially hazardous delay in the performance of urgent procedures. Emergency referrals undergoing surgery were categorised into three groups: Group A-patients requiring surgery either immediately or at the earliest possible time (maximum 3 h after diagnosis). Group B-patients requiring urgent but not immediate surgery (within 6 h of diagnosis). Group C-patients whose operations could be delayed until social hours without detriment. The reason for delay-shortage of theatre nursing, anaesthetic or surgical staff-was recorded in each case. Of the 95 patients in Group C (elective management) 63 (65%) underwent surgery within social hours, 15 (16%) between 1800 and 2100 and 17 (18%) at night. Unacceptable delays occurred in 37 (14%) of the 260 cases and were most likely to affect patients in Group A who most needed urgent care. We conclude that our current staffing levels in theatre nursing should be increased to consistently provide two (rather than one) staffed theatres for emergencies, in addition to a theatre team dedicated exclusively to obstetrics. Anaesthetic manpower should be increased to provide four duty anaesthetists with no more than one at SHO level as obstetric and intensive care duties can be complex. General surgical staffing requires expansion in order that on-call staff have no fixed commitments during and in the session immediately after their duty periods.

The recent Confidential Enquiry into Perioperative Deaths (1) (CEPOD) has suggested that 30% of the deaths in surgical practice were at least partly due to surgical failings and 7% of deaths were due entirely to surgical faults. Surgical failings resulted from a combination of inappropriate preoperative management, opera-

tive procedures and grade of operating surgeon. Errors in management were more frequent when junior surgeons acted without consultation or supervision by their seniors. It is generally accepted that a hospital which deals with surgical emergencies should keep one fully equipped operating theatre available at all times. It should thus be possible to perform the majority of urgent but not life-saving procedures during social hours, when senior surgical and anaesthetic staff are most readily available and at their freshest. It is equally important to emphasise that although a proportion of surgical emergencies can and often should be dealt with some hours or even days after admission, there remains a group of conditions for which surgery should be available within hours or even minutes of arrival. We thus set out to study prospectively over a 6-month period the efficiency of emergency surgical management in a district general hospital with two main aims in mind. Firstly, we hoped to determine the extent to which nonlife-threatening emergencies could be managed within social hours. Secondly, we wished to know whether there was delay in the management of urgent cases.

Methods Correspondence to: Mr M K H Crumplin, Consultant Surgeon, Wrexham Maelor Hospital, Croesnewydd Road, Wrexham, Clwyd LL13 7TD

The Maelor Hospital has 660 beds, providing for a local population of 228 000. It is staffed by four consultants in general surgery with one senior registrar, three regis-

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D J Flook and M K H Crumplin

three senior house officers and four preregistration house officers. Currently, two teams of theatre nurses cover emergencies, with one of these dedicated solely to obstetrics. Anaesthetic cover for all surgical and obstetric emergencies and for the intensive care unit is usually provided by one consultant, one registrar and one senior house officer, with often a fourth anaesthetist on the intensive care unit during the day. All surgical staff were aware of the study being performed and at the outset and regularly during the 6-month period of the study, each was advised that our aim was to perform emergency surgery within social hours (locally defined as 0800-1800) unless this was likely to be to the detriment of the patient. Clinical conditions regarded as too urgent to be managed in this way were divided into two broad groups. First were conditions such as ruptured aortic aneurysm or arterial embolus, bleeding or perforated viscus, suspected mesenteric infarction or testicular torsion (Group A). These conditions were held to require surgery as soon as possible after diagnosis (unless resuscitation was needed before anaesthesia) and to permit a measure of delay, a maximum of 3 h was allowed between diagnosis and surgery. Included as a subdivision (Group A1) were patients with uncontrolled haemorrhage or major trauma who actually required immediate operation. Second were conditions such as appendicitis, incarcerated hernia and gastrointestinal bleeding requiring endoscopic assessment, and patients with intercurrent medical problems such as diabetes and cardiorespiratory disease which could deteriorate if acute inflammatory conditions were not expeditiously treated (Group B). For this group it was held that no more than 6 h should be allowed between diagnosis and reaching theatre. All other patients were felt to be suitable for elective management (Group C). Data concerning emergency surgical cases were obtained by establishing a separate register for all patients admitted as an emergency who subsequently underwent operation. The register was kept in the surgeons' changing room and was completed by the registrar or senior house officer responsible for each patient. In each case the patient's name, age, admission date and time, name and grade of surgeon and provisional and operative diagnosis were recorded. The time of operation was also noted and any delay calculated, either from the time of decision to operate in Groups A and B, or from the time for which surgery had been planned in all other cases. In all cases where there had been delay the recording officer attempted to define whether such delay had occurred due to shortage of theatre nurses or to unavailability of anaesthetic or surgical staff. In a similar fashion to previous studies (2,3) from this unit, night-time surgery was defined as that commencing between 2100 and 0800. trars,

register. Of these, 78 were major procedures, 90 intermediate and the remaining 92 minor procedures, the latter group including 40 upper alimentary endoscopies for gastrointestinal bleeding. Consultants performed 12 (4.6%) of the procedures (and assisted in a further six); 48 (18.4%) were carried out by the senior registrar (assisted in a further 10) and registrars and senior house officers performed 72 (27.6%) and 128 (49.4%) procedures, respectively. The timing of operations is shown in Table I. Most of the 48 patients who underwent surgery between 1800 and 2100 and some of the night cases had, in fact, been scheduled for operation during social hours. These were not classified as delayed cases unless the patient's management was compromised but 10 of these cases were performed by surgeons who were officially off duty. The remaining 94 (36.5%) operations were performed at night-4 (4% of night cases) by consultants, 11 (12%) by the senior registrar, 18 (19%) by registrars and 61 (65%) by SHOs. The distribution of cases among the four grades of surgeon is shown in Table II. Group A (patients requiring surgery within 3 h) included 47 patients (five in Subgroup Al), Group B (surgery within 6 h) 118 patients and 95 patients were felt to be suitable for elective management, Group C. Unacceptable delays occurred in 37 (14%) cases, none of whom were in Subgroup A1 (requiring immediate surgery). The incidence and duration of and reasons for delay in each of Groups A, B and C is shown in Tables III and IV. These patients had a mean age of 43 years, but their ages ranged from 2 months to 89 years. Three patients who suffered a delay were under 10 years of age and seven were over 70 years of age. Overall, only 63 (65%) of the 95 Group C patients had their operation during social hours, but 15 (15%) of the remainder underwent surgery between 1800 and 2100 and only 17 (18%) were inappropriately treated at night, either due to delay or poor planning. The incidence of delay and associated mortality in Group A patients is shown in Table V. There were no deaths in patients in Groups B and C. Within the 6-month period of the study, 21 separate days encompassed all of the 37 cases of delayed surgery, with up to four patients being affected on any day. There was no evidence that delays were most likely to occur on any particular day of the week.

Table I. Timing of operations Patient group A

Al

Results In the 6-month period January-July 1988, 260 emerentered on the emergency surgical

gency cases were

B

C Total

Social hours 0800-1800

Evening

Night

1800-2100

2100-0800

6

14 3 38 63

27 15

22 2 53 17

118

48

94

Management of emergency surgery in a district general hospital

29

Table I. Distribution of cases by grade of surgeons Procedure Gut perforation or bleeding Intestinal obstruction Appendicectomy Abscess + niinor inflammatory condition Complicated hernia and testicular torsion Aneurysm Endoscopy Miscellaneous

Consultant

Senior registrar

Registrar

4

8

16

7

3

11

8

4

1 0

3 7

10 6

66 26

0

3

9

13

0 11 2 Cholecystecomy 1 Ruptured diaphragm 1 Thyroidectomy/ tracheostomy 1 Embolectomy 48

1 21 1 Above-knee amputation

2 0 2 Embolectomies

12

Total

Discussion Management of less serious emergencies during social hours Of all emergency operations in this series, 45% were performed within social hours, which is encouraging. Nonetheless in Group C patients (suited to elective management), only 65% underwent operation between 0800 and 1800. The performance of some of the remaining 40% of Group C by surgeons in their off-duty time could be avoided by allowing on-call staff to deal with such cases, but such a policy would have considerable implications for continuity of patient care and would be considered undesirable by many surgeons. It should also be noted, however, that if our levels of 35% of Group C cases and 55% of emergency cases as a whole, continue to undergo evening or night-time surgery, the strain on senior surgeons will be greatly increased when junior manning is decreased as proposed in Achieving a Balance (4). It is clear that many operations are performed at night because all concerned are aware that it will not be possible to make suitable arrangements for surgery within social hours. This has the benefit for most patients of earlier operations, but as CEPOD (1) has shown, unsupervised junior staff occa-

Table III. Incidence and duration of delays

Group A Group B Group C

Total in group

Delays (%)

Duration in hours mean (range)

47 118 95

11 (24) 18 (15) 8 (8)

5 (2-14) 5 (3-8) 4.5 (2-8)

72

Senior house officer

0 7 1 Above-knee amputation 4 Embolectomies 128

sionally do perform inappropriate procedures, and this is far more likely to occur at night when supervision is more remote. A review of the cases in the present study suggested that a small number of patients might have been managed differently had they been treated by senior staff. One such example was a 92-year-old lady who underwent laparotomy for a sigmoid colon perforation even though she was clearly in ASA Class 5 preoperatively-a moribund patient who was not expected to survive 24 h with or without operation-as defined by the American Society of Anaesthetists (5). Surgical delays By reputation, National Health Service hospitals provide an efficient overall emergency service, but we know of no study which has attempted to audit the efficiency of provision of emergency surgery. In a recent review (3) of surgery in elderly patients in the Maelor Hospital, it was noted that only 41% of operations (both elective and emergency) were performed by senior surgeons (consultant or senior registrar). In the present study, a still lower proportion of cases (23%) were performed by seniors, largely (Table I) because of the high proportion of cases, such as appendicectomy and abscess drainage, which were considered within the expertise of more junior staff. Nonetheless, a proportion of the delays and cases of inappropriate timing of surgery in this study, might well have been avoided if there had been greater involvement of senior staff. There were unacceptable delays in the surgical management of 37 (14%) of 260 patients undergoing surgery after emergency referral in this review and delay was proportionately most frequent in Group A (24%), who were most in need of urgent surgery. None of the patients requiring immediate surgery (Subgroup Al)

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D J Flook and M K H Crumplin

Table IV. Reasons for delay Shortage of one or more of the following

Group A Group B Group C All groups any involvement in delay*

Theatre nurses alone

Anaesthetist alone

2 8 2 26

1 3 4 15

Surgeon alone 1

Combinations 8 6 2

Total

11 18 8

10

* It will be noted that the figures in this column add up to more than 37. This is because on 16 occasions more than one element of the theatre staff/anaesthetist/surgeon triad were unavailable.

Table V. Incidence of delay and associated mortality in Group A Delay (deaths)

Condition

Subgroup A, Remainder Group A

Ruptured aortic aneurysm Uncontrolled GI bleeding I. Major trauma

2 (1) 1 (1) 2

Sl

( Perforated viscus J GI bleeding 1 Arterial embolus ? Testicular torsion

suffered a delay, but 11 of the 47 Group A subjects did, and four (36%) of these delayed patients died. Only two (5.5%) of the remaining 36 Group A patients died and both were in Subgroup Al, having surgery for uncontrolled haemorrhage-one a ruptured aortic aneurysm, the other a rebleed from a previously oversewn duodenal ulcer. While the numbers of these cases are too small to permit a valid statistical comparison, this is suggestive of a detrimental effect of delayed surgery. There were also cases in which delay seemed to have been at least partly responsible for subsequent problems; for example a 67-year-old lady taking steroids for arthritis who had suffered a mesenteric infarction. Surgery was delayed in this case by over 6 h and by the time of laparotomy there was an ileal perforation with generalised peritonitis. Small bowel resection and exteriorisation was performed and there was no further mesenteric infarction, but the patient eventually died after 6 days of overwhelming sepsis and renal failure. At the least, a delay in reaching theatre led to added discomfort, anxiety and inconvenience for the patients concerned. In addition, three of the delayed patients were less than 10 years old and seven were 70 years or older, and we feel that delays are particularly inappropriate in patients at the extremes of the age range. Most of the delays were due to shortage of only one of the theatre staff/anaesthetist/surgeon triad with lack of theatre nurses being the most frequent, followed closely by a shortage of anaesthetists (Table IV), but all three elements were deficient on several occasions. While significant unplanned delays were only recorded on 21 days over a 6-month period, an average of one or

No delay (deaths)

8 (4) 1 2

18 4 4 5

two patients are being inappropriately managed every week. This again shows that greater flexibility of staffing, or perhaps even an increase in manpower, is required in theatre nursing, anaesthesia and general surgery. We propose that a district general hospital such as ours should provide three full teams of theatre staff for emergencies. One team would cover obstetrics and the other two would cover general surgery, orthopaedics, gynaecology and the other disciplines. Suitable anaesthetic cover would comprise a consultant, a registrar and a further SHO or registrar plus a separate officer to cover the intensive care unit (in some hospitals this role might be occupied by a surgeon or a physician). Not only should there be a vacant emergency theatre but general surgical work programmes should be organised in such a way that the consultant, registrar or SHO on call could use the available emergency theatre to carry out emergency operations (whether from Group A, B or C) with senior supervision where appropriate. Thus, during an emergency intake day, the duty surgical staff should only be involved in work that can be relatively easily interrupted (eg ward rounds, administration or

teaching). This study has shown that the majority of surgical emergencies can be managed with acceptable efficiency in a district general hospital. A significant proportion, however, amounting to 14% (or one or two patients per week in this hospital) suffer a potentially detrimental delay in their management. It would appear that some of these delays are the inevitable consequence of inadequate levels of theatre nursing, anaesthetic and surgical staffing. It is also clear that the proposed changes in staffing

Management of emergency surgery in a district general hospital levels detailed in Achieving a Balance (4) will have to be accompanied by radically altered working practices, if surgeons are to be able to deal with emergency cases unhindered by a heavy load of routine work, during and immediately after their on-call periods.

2 3

The authors wish to thank Mr P S Anandaram, Mr N K Mihssen, Mr Z Zarifa, Mr G Griffiths, Dr K T Ong, Dr R Anwar and Mr A Sen for their help in running the study and Miss R Hall and Miss S Langford for secretarial assistance.

4

References

5

I Buck N, Devlin HB, Lunn JN. Report of the Confidential Enquiry into Perioperative Deaths. London: Nuffield

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Provincial Hospitals Trust and The King Edward's Hospital Fund for London, 1987. Crumplin MKH et al. Management of gallstones in a district general hospital. BrJ7 Surg 1985;72:428-32. Barlow AP, Zarifa Z, Shillito RF, Crumplin MKH, Edwards E, McCarthy J. Surgery in a geriatric population. Ann R Coll Surg Engl 1989;71:110-114. Hospital Medical Staffing-Achieving a Balance-Plan for Action. Steering Group for Implementation on Behalf of the UK Health Departments, The Joint Consultants Committee and Chairman of Regional Health Authorities. Crown Copyright Oct 1987. Saklad M. Grading of patients for surgical procedures. Anesthesiology 1941;2:281-4.

Received 8 7une 1989

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The efficiency of management of emergency surgery in a district general hospital--a prospective study.

In a 6-month prospective study of management of surgical emergencies in a district general hospital, we have tried firstly to determine the degree to ...
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